1998 Oldsmobile Aurora Owner's Manual - Page 156

Operating the RECIRC mode in cold temperatures or under high humidity conditions may cause moisture to form on the inside of the windshield. If this condition occurs, deselect the RECIRC button. Air Conditioning The air conditioner cools, dehumidifies and filters the air for the inside of the vehicle. The airconditioning compressor is enabled inall modes unless the A/C ON button is in the off position (the indicator lightwill not be illuminated). However, the air conditioning compressor will not operate when the outside temperature is below 42°F (7 "C). When the air conditioner is on, you may sometimes notice slight changes in your vehicle's engine speed and power. This is normal, because the system is designed to cycle the compressor on and off to keep the desired cooling and help fuel economy. On very hot days, open the windows long enough to let the hot air out. This reduces the time required to coolthe interior of the vehicle to a comfortable level. the If system is in the automatic mode (AUTO-PUSH knob indicator lightis on), during very hot days thesystem will automatically go to the RECIRC mode and the temperature door will be positioned at the full cold position for maximum cooling. You can choose the extreme comfort setting of 60"F (16 C), butthe system will not cool any faster by choosing the extreme comfort setting. O A/C ON: Press this button to turn the air conditioning on and off. If the system is operating inthe automatic mode, the A/C ON indicator lightwill automatically illuminate. In the auto mode, the A/C compressor will only operatewhen the system determines itis needed. OFF: Rotate the AUTO-PUSH knob to OFF. Turning the system off will cause the fan toturn off and the airflow to bedirected out the lower floor outlets. The system will still try to keep the interior of the vehicle at the previously chosen comfort setting. The outside temperature will show in the display when the system is set to OFF.